- cross-section, cross-sectional - representing a plane made by cutting across something at right angles to its length; "cross-section views of the neck"
Antonyms: lengthwise, lengthways (indirect, via crosswise)
- cross section - a section created by a plane cutting a solid perpendicular to its longest axis
--1 is a kind of section, plane section
--1 has particulars: profile- cross section - a sample meant to be representative of a whole population
--2 is a kind of sample
- cross section - (physics) the probability that a particular interaction (as capture or ionization) will take place between particles; measured in barns
--3 is a kind of probability, chance
- cross section - a sample meant to be representative of a whole population